20486+5029 BU 366 AB (HD 198455)
20h 48m 34.14s +50° 29' 27.9" P.A. 130.00 sep 1.5 mag 8.70,8.93 Sp A0
| Coord 2000 |
20486+5029 |
|
Discov num |
BU 366 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 48 34.14 +50 29 27.9 |
|
| Date first |
1875 |
|
Date last |
2018 |
|
Obs |
35 |
|
| Pa first |
140 |
|
Pa last |
130.4 |
|
P.A. Now (θ) |
130.4° |
|
| Sep first |
1.5 |
|
Sep last |
1.464 |
|
Sep. Now (ρ) |
1.464" |
|
| Mag pri |
8.70 |
|
Mag sec |
8.93 |
|
delta mag (ΔM) |
0.23 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+003 |
|
| Pri motion dec |
+007 |
|
Sec motion dec |
+007 |
|
| Notes |
|
|
Nature of this double is uncertain.
20486+5029 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 198455 |
|
20 48 34 +50 29 28 |
BU 366 AB |
2018 |
35 |
130 |
1.5 |
8.70 |
8.93 |
0.23 |
|
<=== |
| Show |
|
|
20 48 34 +50 29 28 |
BU 366 AC |
2018 |
14 |
105 |
51.1 |
8.70 |
11.00 |
2.30 |
|
|
| Show |
|
|
20 48 39 +50 29 14 |
D 23 CD |
2016 |
13 |
5 |
1.7 |
11.00 |
11.52 |
0.52 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 198455 |
|
Constellation |
Cygnus |
|
Tycho2 |
3582-00369-1 |
|
Gaia DR2 |
2168392515177373440 |
|
| HD |
198455 |
|
